Mass percentage
- Mass percentage can be defined as the ratio of Mass of the component of the solution and total mass of the solution multiplied by 100%.
- Mathematically, Mass % of a component
- Mass percentage of glucose in a 100g solution containing 10 g of glucose dissolved in 90 g ofwater is 10%.
Mass % of glucose


- Commercial bleaching solution contains62 mass percentage of sodium hypochlorite in water.
Problem: Calculate the mass percentage of benzene (C6H6) and carbon tetrachloride (CCl4) if 22 g of benzene is dissolved in 122 g of carbon tetrachloride.
Solution:

And we also know that:

Alternatively, Mass percentage of CCl4= (100 - 15.28)% = 84.72%